public class YangHui {
    public static void main(String[] args) {
        /*
        1  1
        1  2  1
        1  3  3  1
        1  4  6  4  1
        1  5  10 10 5 1
         */
        int[][] yangHui = new int[6][];
        for (int i = 0; i < yangHui.length; i++) {
            yangHui[i] = new int[i+1];
            for (int j = 0; j < yangHui[i].length; j++) {
                if (j == 0||j ==yangHui[i].length-1) {
                    yangHui[i][j] = 1;
                }
                else {
                    yangHui[i][j] = yangHui[i-1][j] + yangHui[i-1][j-1];
                }
            }
        }
        for (int i = 0; i < yangHui.length; i++) {
            for (int j = 0; j < yangHui[i].length; j++) {
                System.out.print(yangHui[i][j]+"\t");
            }
            System.out.println();
        }
    }
}
